TY - JOUR AU - J. K. Jong TI - A class of the functional equation JO - Matematic̀Œki vesnik PY - 1965 SP - 83 VL - 17 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MV_1965_17_1_a14/ ID - MV_1965_17_1_a14 ER -